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Crystals 2016, 6(7), 76; doi:10.3390/cryst6070076

Preparation of Three-Dimensional Photonic Crystals of Zirconia by Electrodeposition in a Colloidal Crystals Template

1
MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
2
Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Qingfeng Yan
Received: 16 June 2016 / Revised: 28 June 2016 / Accepted: 30 June 2016 / Published: 2 July 2016
(This article belongs to the Special Issue Colloidal Crystals)
View Full-Text   |   Download PDF [1318 KB, uploaded 2 July 2016]   |  

Abstract

Three-dimensional photonic crystals of zirconia were prepared by electrodeposition in a colloidal crystals template following calcination at 500 °C. Scanning electron microscopy, thermogravimetric analysis, X-ray diffraction, and reflectance spectroscopy were employed to characterize the photonic crystals of zirconia. It was found that hydrated zirconium ions could penetrate the colloidal crystals template and reach the substrate easily by electrodeposition, which resulted in stronger bonding between the substrate and the as-deposited membrane. Moreover, the electrodeposited membrane had low water content, leading to a low amount of shrinkage during calcination. Both these properties could suppress detachment from the substrate upon removal of the colloidal crystals template. Therefore, the three-dimensional photonic crystals of zirconia synthesized in this study exhibited very good preservation of the ordered structures of the colloidal crystals template with a high density. A peak of reflection higher than 70% was formed in the reflectance spectrum because of the strong diffraction of the ordered structures. View Full-Text
Keywords: zirconia; photonic crystals; colloidal crystals template; electrodeposition zirconia; photonic crystals; colloidal crystals template; electrodeposition
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Pan, L.; Xu, H.; Sun, Y.; Zhao, J.; Li, Y. Preparation of Three-Dimensional Photonic Crystals of Zirconia by Electrodeposition in a Colloidal Crystals Template. Crystals 2016, 6, 76.

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